> ## Documentation Index
> Fetch the complete documentation index at: https://praison.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Observability Hooks • AI Agent SDK

> ObservabilityHooks: Observability hooks for escalation pipeline.

# ObservabilityHooks

> Defined in the [**observability**](https://praison.ai/docs/sdk/reference/praisonaiagents/modules/observability.md) module.

AI Agent

Observability hooks for escalation pipeline.

Provides:

* Event emission
* Metrics collection
* Custom handler registration
* Tracing support

```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
%%{init: {'theme': 'base', 'themeVariables': { 'primaryColor': '#8B0000', 'primaryTextColor': '#fff', 'primaryBorderColor': '#710101', 'lineColor': '#189AB4', 'secondaryColor': '#189AB4', 'tertiaryColor': '#fff' }}}%%

graph TD
    event["Event Trigger"] --> hook["Hook: ObservabilityHooks"]
    hook --> decision{"Decision"}
    decision -- "Allow" --> proc["Process"]
    decision -- "Deny" --> block["Block"]
    style hook fill:#189AB4,color:#fff
    style event fill:#8B0000,color:#fff
    style proc fill:#8B0000,color:#fff
    style block fill:#8B0000,color:#fff
```

## Constructor

**enabled** `bool` (default: True)

No description available.

## Methods

> [card] [on()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-on.md)
>
> Register an event handler.

> [card] [off()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-off.md)
>
> Unregister an event handler.

> [card] [emit()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-emit.md)
>
> Emit an event.

> [card] [set\_session()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-set_session.md)
>
> Set current session ID.

> [card] [set\_stage()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-set_stage.md)
>
> Set current stage.

> [card] [increment\_step()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-increment_step.md)
>
> Increment step counter.

> [card] [add\_tokens()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-add_tokens.md)
>
> Add to token count.

> [card] [get\_events()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-get_events.md)
>
> Get all recorded events.

> [card] [get\_metrics()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-get_metrics.md)
>
> Get collected metrics.

> [card] [reset()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-reset.md)
>
> Reset all state.

> [card] [start\_execution()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-start_execution.md)
>
> Mark execution start.

> [card] [end\_execution()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-end_execution.md)
>
> Mark execution end.

> [card] [get\_summary()](https://praison.ai/docs/sdk/reference/praisonaiagents/functions/ObservabilityHooks-get_summary.md)
>
> Get execution summary.

## Usage

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
hooks = ObservabilityHooks()
    
    # Register handler
    hooks.on(EventType.STAGE_ESCALATE, lambda e: print(f"Escalated to {e.stage}"))
    
    # Use with pipeline
    pipeline = EscalationPipeline(observability=hooks)
```

## Source

> [card] [View on GitHub](https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/escalation/observability.py#L116)
>
> `praisonaiagents/escalation/observability.py` at line 116

***

## Related Documentation

> [card] [Hooks Concept](https://praison.ai/docs/docs/concepts/hooks)

> [card] [Hook Events](https://praison.ai/docs/docs/features/hook-events)

> [card] [Callbacks](https://praison.ai/docs/docs/features/callbacks)


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